MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage, indicating a link farm designed to redirect users to potentially malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/d06c3c10d51d9bbf65fdab953fc6304d/72888846946.pdf
- https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160881b6859d12---86926293736.pdf
- http://askort.pl/Upload/file/popuwuxemuzuroxokijesoj.pdf
- http://songhandiban.com/uploadfile/file/2021060903084573499.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16099ca88db1d6---zekevapox.pdf
- https://bluebeakbranding.com/wp-content/plugins/super-forms/uploads/php/files/9c5cfc6a369e6a35432da54f96b3a987/xujisovepotobotufiguve.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/5ad173186049dc5324ad52246924311f/wovijume.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a4914616935---87831141120.pdf
- https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/305198061d91874743364e224ec8b1c8/sezepigagexumilid.pdf
- http://atthaya.com/file_media/file_image/file/31841707234.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c8706e77aef---kufujujusawiraraza.pdf
- https://aartipalette.com/userfiles/file/tisonomipimivezobara.pdf
- http://skyline1968.com/clients/74864/File/napikonukevebobatosofu.pdf
- http://cn-junsheng.com/upload/file///202162981944406.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a74f7220faf---56963913275.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/c78200333eec7ea372d16dd1d8166bea/43033529766.pdf
- http://maydangson.com/vietkiendo/upload/file/21611720428.pdf
- http://unsersohn.ch/images/file/62090576904.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/8117ef7b1e9baf744248520afd3afbd4/16145699345.pdf
- http://kleinschaden.expert/userfiles/file/xopidamodubusuwasowi.pdf
- https://propertiproperty.com/Uploads/userfiles/files/nenijokewizujuno.pdf
- http://cipetbhopal.com/webimg/files/gusovapesesovutisajitozo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=a+paddle+used+to+row+a+boat
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f260.bin18722068dfdb0432feff710d9afb754a5505c82b27e5312f498bc4a50be1e4c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF260 | 16408 bytes |
font_01_sfnt_off00011cf4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CF4 | 16792 bytes |
font_02_sfnt_off0001350b.bin9e0a50fee45a32d788d94e3d571d4474dbe413c84fc4e2c3a9dea02ee81606ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1350B | 10496 bytes |
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